@fetanylfloyd @danaparish @Riginal_Zen It was changed because it was confusing. The word "immunity" does not mean 100% effective sterilizing immunity and "old" vaccines often don't provide it either (never 100% in any case), including IPV (polio), mumps, influenza and others.
@fetanylfloyd@danaparish@original_-Zen之所以更改，是因为它令人困惑。“免疫力”一词并不意味着100%有效的消毒免疫力，“旧”疫苗通常也不能提供免疫力（在任何情况下都不能提供100%），包括IPV（脊髓灰质炎）、腮腺炎、流感等。